Black and yellow marbled truck shifter knob. 2-1/8" diameter. Built-in 1/2-13 brass threaded insert. Made of ultra durable Partek resin. This semi truck interior accessory is made in the USA.

See more link for Installation Instructions.
Installation requires shifter adaptor. Choose 13/18 Speed, item 238690 or 9/10 Speed, item 238691, sold separately.